diff --git a/conn.go b/conn.go
index 45acba33..8d2bc36c 100644
--- a/conn.go
+++ b/conn.go
@@ -16,7 +16,6 @@ type PeerInfo struct {
 	IP          string
 	PubKeyBytes []byte
 	IsPrivate   bool
-	KeyGenOpt   string
 	MetaData    map[string]string
 }
 
diff --git a/mocks/mock_key_service.go b/mocks/mock_key_service.go
index 6c377810..5f2bd418 100644
--- a/mocks/mock_key_service.go
+++ b/mocks/mock_key_service.go
@@ -146,18 +146,9 @@ func (recoverer *MockECDSAKeyRecoverer) RecoverKeyFromByte(keyBytes []byte, isPr
 	return nil, errors.New("isPrivateKey value should be true or false")
 }
 
-func curveFromString(keyGenOpt string) elliptic.Curve {
-	switch keyGenOpt {
-	case "P-384":
-		return elliptic.P384()
-	}
-	return nil
-}
-
 type mockKeyFile struct {
 	KeyBytes     []byte
 	IsPrivateKey bool
-	KeyGenOpt    string
 }
 
 func MockStoreKey(key bifrost.Key, keyDirPath string) error {
@@ -175,10 +166,9 @@ func MockStoreKey(key bifrost.Key, keyDirPath string) error {
 	// byte formatted key
 	keyBytes := key.ToByte()
 	isPrivateKey := key.IsPrivate()
-	keyGenOpt := key.KeyGenOpt()
 
 	// make json marshal
-	jsonKeyFile, err := json.Marshal(mockKeyFile{KeyBytes: keyBytes, IsPrivateKey: isPrivateKey, KeyGenOpt: keyGenOpt})
+	jsonKeyFile, err := json.Marshal(mockKeyFile{KeyBytes: keyBytes, IsPrivateKey: isPrivateKey})
 	if err != nil {
 		return err
 	}
diff --git a/server/server_internal_test.go b/server/server_internal_test.go
index 284653d5..5490813c 100644
--- a/server/server_internal_test.go
+++ b/server/server_internal_test.go
@@ -71,7 +71,6 @@ func TestServer_validateRequestPeerInfo_whenInValidPeerInfo(t *testing.T) {
 		IP:          "127.0.0.1",
 		PubKeyBytes: []byte("123"),
 		IsPrivate:   false,
-		KeyGenOpt:   "P-384",
 	}
 
 	keyOpt := bifrost.KeyOpts{
diff --git a/server/server_test.go b/server/server_test.go
index 9165affb..72cd0f5e 100644
--- a/server/server_test.go
+++ b/server/server_test.go
@@ -19,7 +19,6 @@ func TestServer_validateRequestPeerInfo_whenValidPeerInfo(t *testing.T) {
 		IP:          "127.0.0.1",
 		PubKeyBytes: keyOpt.PubKey.ToByte(),
 		IsPrivate:   keyOpt.PubKey.IsPrivate(),
-		KeyGenOpt:   keyOpt.PubKey.KeyGenOpt(),
 	}
 
 	mockServer := mocks.NewMockServer()
@@ -49,7 +48,6 @@ func TestServer_BifrostStream(t *testing.T) {
 		IP:          "127.0.0.1",
 		PubKeyBytes: keyOpt.PubKey.ToByte(),
 		IsPrivate:   keyOpt.PubKey.IsPrivate(),
-		KeyGenOpt:   keyOpt.PubKey.KeyGenOpt(),
 	}
 
 	mockStreamServer := mocks.NewMockStreamServer(*peerInfo)
diff --git a/util.go b/util.go
index fecbb8df..4daea2f1 100644
--- a/util.go
+++ b/util.go
@@ -47,7 +47,6 @@ func BuildResponsePeerInfo(pubKey Key, metaData map[string]string) (*pb.Envelope
 	pi := &PeerInfo{
 		PubKeyBytes: b,
 		IsPrivate:   pubKey.IsPrivate(),
-		KeyGenOpt:   pubKey.KeyGenOpt(),
 		MetaData:    metaData,
 	}